Payments should not be allowed to be reversed if payment batch is in completed status

Payment process flow:
1. Operations team creates a payment batch and add details
2. They forward the batch to Treasury team for Approval
3. Once approved by Treasury, the payment batch is sent to downstream system using “Sent to Bank” for further approvals
4. Upon getting further approvals in downstream system, IMOS interface creates payment batch import, payment batch response xml files in Incoming folder of IMOS, this enables below
4 a) The payment batch is set to status “Completed”
4 b) A payment transaction is created for Invoice automatically by Autopay.exe
5. If payment needs to be reversed after Approval, Operations would request Treasury to Reject the payment batch In downstream system
6. A payment batch import file is created with a rejected message by IMOS interface, this will change payment batch status to rejected
7. Then Operations team goes to the Invoice/TDE screen to reverse the payment associated with the payment batch manually.

Deviation: it is a process deviation